keel.Algorithms.Neural_Networks.NNEP_Common.mutators.parametric

Class SigmNeuronParametricMutator

java.lang.Object

keel.Algorithms.Neural_Networks.NNEP_Common.mutators.parametric.SigmNeuronParametricMutator

All Implemented Interfaces:

INeuronParametricMutator<SigmNeuron>

public class SigmNeuronParametricMutator
extends java.lang.Object
implements INeuronParametricMutator<SigmNeuron>

Parametric Mutator of Sigmoidal Neurons.

Since:

JDK1.5

Version:

0.1

Author:

Written by Pedro Antonio Gutierrez Penia (University of Cordoba) 16/7/2007, Written by Aaron Ruiz Mora (University of Cordoba) 16/7/2007

Field Summary

Fields

Modifier and Type	Field and Description
protected double	amplitude Amplitude coefficient for allowed weights
protected IRandGen	randgen Random generator used in mutation

Constructor Summary

Constructors

Constructor and Description
SigmNeuronParametricMutator() Empty constructor

Method Summary

Modifier and Type	Method and Description
double	getAmplitude() Returns the amplitude coefficient for allowed weights
IRandGen	getRandgen() Returns the random generator used in mutation
void	parametricMutation(SigmNeuron neuron, LinkedLayer layer, LinkedLayer nextLayer, int indexNeuron, double alphaInput, double alphaOutput, double temper) Do the parametric mutation over the links of a specific neuron in a specific layer
void	setAmplitude(double amplitude) Sets the amplitude coefficient for allowed weights
void	setRandgen(IRandGen randgen) Sets the random generator used in mutation

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

randgen

protected IRandGen randgen

Random generator used in mutation

amplitude

protected double amplitude

Amplitude coefficient for allowed weights

Constructor Detail

SigmNeuronParametricMutator

public SigmNeuronParametricMutator()

Empty constructor

Method Detail

getAmplitude

public double getAmplitude()

Returns the amplitude coefficient for allowed weights

Returns:

double Amplitude coefficient

setAmplitude

public void setAmplitude(double amplitude)

Sets the amplitude coefficient for allowed weights

Parameters:

amplitude - New amplitude coefficient

getRandgen

public IRandGen getRandgen()

Returns the random generator used in mutation

Returns:

IRandGen Random generator

setRandgen

public void setRandgen(IRandGen randgen)

Sets the random generator used in mutation

Parameters:

randgen - New random generator

parametricMutation

public void parametricMutation(SigmNeuron neuron,
                               LinkedLayer layer,
                               LinkedLayer nextLayer,
                               int indexNeuron,
                               double alphaInput,
                               double alphaOutput,
                               double temper)

Do the parametric mutation over the links of a specific neuron in a specific layer

Specified by:

parametricMutation in interface INeuronParametricMutator<SigmNeuron>

Parameters:

neuron - Neuron in the layer to mutate

layer - Layer that contains the neuron

nextLayer - Next layer

indexNeuron - Index of neuron in the layer

alphaInput - Alpha coeficient for the input weigths

alphaOutput - Alpha coeficient for the output weigths

temper - Temperature of the individual that is being mutated